limits
Try the rSymPy or Ryacas packages. In the rSymPy code below the var command defines x as symbolic to sympy and then we perform the computation:
library(rSymPy)
Loading required package: rJava
sympy("var('x')")
[1] "x"
sympy("limit(x*x + x + 2, x, 2)")
[1] "8" Or using devel version define x as symbolic first to sympy and then to R:
library(rSymPy)
source("http://rsympy.googlecode.com/svn/trunk/R/Sym.R")
sympy("var('x')")
[1] "x"
x <- Sym("x")
limit(x*x + x + 2, x, 2)
[1] "8" or using Ryacas:
library(Ryacas)
Loading required package: XML
x <- Sym("x")
Limit(x^2+x+2, x, 2)
[1] "Starting Yacas!" expression(8) More info is available here which you should read before using these packages: http://rsympy.googlecode.com http://ryacas.googlecode.com On Tue, May 5, 2009 at 5:39 AM, Hassan Mohamed
<hassan_hany_fahmy at yahoo.com> wrote:
Hey, what is the R function for the mathematical limit ? e.g. to calculate ?and return the amount that the expression X^2 +X +2 approach as X approach 2 (X-> 2) thanks hassan ? ? ? ?[[alternative HTML version deleted]]
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